CN201954609U

CN201954609U - Double-eye gas stove capable of realizing ignition depending on electronic pulse

Info

Publication number: CN201954609U
Application number: CN2010202828080U
Authority: CN
Inventors: 冯杰怀
Original assignee: ZHONGSHAN HUAGE ELECTRICAL APPLIANCES CO Ltd
Current assignee: ZHONGSHAN HANJI ELECTRIC APPLIANCE CO., LTD.
Priority date: 2010-08-05
Filing date: 2010-08-05
Publication date: 2011-08-31
Anticipated expiration: 2020-08-05

Abstract

The utility model discloses a double-eye gas stove capable of realizing ignition depending on an electronic pulse, which comprises a micro control chip, a switching circuit, a battery power supply circuit, an undervoltage detection circuit, an alarm circuit, an ignition control circuit, a flame detection circuit and a gas valve circuit. All the circuits are respectively and correspondingly connected with the micro control chip. According to the double-eye gas stove capable of realizing ignition depending on the electronic pulse, on one hand, due to the adoption of a gap-type flame detection scheme and an alarm design, the safety and a user monitoring performance of a product are greatly improved; on the other hand, a high-performance capacitor and a high-pressure trigger tube are adopted in design, so that the ignition efficiency of the double-eye gas stove is greatly promoted and the service life of the double-eye gas stove is greatly prolonged; and moreover, the double-eye gas stove also has the advantages of high energy utilization rate, low pollution, reasonable cost performance and the like. Therefore, the double-eye gas stove is not only safe and practical, but also energy-saving and has a wide application prospect.

Description

A kind of eyes gas-cooker that relies on electronic impulse to realize igniting

Technical field

The utility model relates to a kind of kitchen tools, especially relates to a kind of eyes gas-cooker that relies on electronic impulse to realize igniting.

Background technology

Gas-cooker is a kind of heating kitchen tools that are used to cook, it utilizes the burning of air and combustion gas mixing gas, and the radiant heat that produces when burning by it heats food, and along with growth in the living standard, gas-cooker is used by all over the world people widely.But the defective of existing gas-cooker also is conspicuous: the one, and security performance is good inadequately, often because after accident caused fray-out of flame, still in the supply combustion gas, this just caused potential harm to user's life to fuel cartridge; The 2nd, warning performance imperfection is a described security situation or problem causes the electricity shortage user all unknown because battery is under-voltage etc., and this has just caused very big inconvenience to user's use; The 3rd, the situation of not getting angry happens occasionally; The 4th, the utilization rate of combustion gas is not high enough, and a large amount of fuel gas burings is insufficient, wastes with the form of oil smoke.

Summary of the invention

At the problems referred to above, the object of the present invention is to provide a kind of can addressing the above problem, rely on electronic impulse to realize the eyes gas-cooker of igniting.

The utility model is that the technical scheme that its technical problem of solution is adopted is:

A kind of eyes gas-cooker that relies on electronic impulse to realize igniting, it is characterized in that comprising: the microcontroller chip, the microcontroller chip is respectively with on-off circuit, battery feed circuit, undervoltage detection circuit, warning circuit, ignition control circuit, flame detection circuit with the burnt gas valve circuit is corresponding is connected, and described flame detection circuit is connected with ignition control circuit.

Further, described ignition control circuit comprises circuit for producing high voltage, igniting pin and high pressure trigger tube, described circuit for producing high voltage input links to each other with the microcontroller chip, output is divided into two branch roads, article one, branch road connects the igniting pin, another branch road connects high pressure trigger tube, described high pressure trigger tube other end ground connection.

As the further improvement of such scheme, described warning circuit comprises the buzzer BUZ that is connected with the microcontroller chip, is under-voltage condition if undervoltage detection circuit detects, and then the microcontroller chip can be controlled buzzer BUZ warning; If flame detection circuit detects accident extinguishing, then the microcontroller chip also can be controlled buzzer BUZ warning.

Further improvement as such scheme, described flame detection circuit is the clearance-type flame detection circuit, be described ignition control circuit start-up point fight detect flare up fire after, can stop to examine M second, open detection again, then stop to examine M second again if detect flame, if detect N continuous second less than flame then think flame-out, then the microcontroller chip can be controlled the burnt gas valve circuit and close gas valve, and the control warning circuit is reported to the police, wherein M is 5, and N is 5.

The beneficial effects of the utility model are: the present invention on the one hand, adopts the clearance-type flame checking scheme and the design of reporting to the police as a kind of eyes gas-cooker that relies on electronic impulse to realize igniting, makes security of products and user monitoring performance improve greatly; On the other hand, because high-performance capacitor and high pressure trigger tube have been adopted in design, make all to have in ignition effectiveness of the present utility model and service life significantly to promote; Advantages such as in addition, the utility model also possesses the energy utilization rate height, pollutes less, cost performance is reasonable.Therefore, the present invention is not only safe, practical but also energy-conservation, has a extensive future.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described further:

Fig. 1 is a theory diagram of the present utility model;

Fig. 2 is the theory diagram of the utility model ignition control circuit;

Fig. 3 is a circuit diagram of the present utility model.

The specific embodiment

With reference to Fig. 1, a kind of eyes gas-cooker that relies on electronic impulse to realize igniting provided by the utility model, comprise microcontroller chip 1, microcontroller chip 1 respectively with on-off circuit 2, battery feed circuit 3, undervoltage detection circuit 4, warning circuit 5, ignition control circuit 6, flame detection circuit 7 and 8 corresponding connections of burnt gas valve circuit, described flame detection circuit 7 is connected with ignition control circuit 6.Described ignition control circuit 6 comprises circuit for producing high voltage 61, igniting pin 62 and high pressure trigger tube 63, described circuit for producing high voltage 61 inputs link to each other with microcontroller chip 1, output is divided into two branch roads, article one, branch road connects igniting pin 62, another branch road connects high pressure trigger tube 63, described high pressure trigger tube 63 other end ground connection.

As shown in Figure 1, because the utility model is the eyes gas-cooker, existing is that example is set forth with the simple eye gas-cooker of left end only, and right-hand member roughly the same.When needs carry out electronic pulse ignition, the left-handed opening that connects on-off circuit 2, the Vcc power supply is normal, while battery feed circuit 3 is operate as normal also, microcontroller chip 1 satisfies the energy supply condition of operate as normal, at this moment, microcontroller chip 1 can send a low level signal to the base stage of positive-negative-positive triode Q3, base stage to NPN type triode Q7 sends a high level simultaneously, make the equal conducting of triode Q3 and Q7, ignition transformer E1 takes place to shake by force subsequently, by charging at the two ends of storage capacitor C2 after the diode D5 rectification, after capacitor C 2 two ends rise to specific voltage, Zener diode ZD1 also can obtain enough breakdown voltages and conducting, thereby make the control end of controllable silicon M1 obtain trigger current and conducting, at this moment, storage capacitor C2, form discharge loop between high voltage package E2 and the controllable silicon M1, storage capacitor C2 is by the primary coil discharge of high voltage package E2, and form high pressure on the level coil secondarily, make high pressure trigger tube 63 obtain enough voltages and puncture, simultaneously, form the electrion loop between the igniting pin 62 that connects on the high voltage package E2 secondary coil and high pressure trigger tube 63 and the ground, igniting pin 62 produces fiery arc by high pressure in air, make fuel gas buring.

What need further emphasize is because ignition control circuit 6 adopts high performance storage capacitor C2 and C4, to make that ignition effectiveness of the present utility model is significantly strengthened.Simultaneously, the high pressure trigger tube is compared with traditional gas-discharge tube and is had unlimited switch and use, bear the advantage that electric current is big, response speed is fast, high-temperature stability is good, replace the employed gas-discharge tube of traditional design with the high pressure trigger tube, make service life of the present utility model and reliability improve greatly.

As preferred implementation of the present utility model, described warning circuit 5 comprises the buzzer BUZ that is connected with microcontroller chip 1, is under-voltage condition if undervoltage detection circuit 4 detects, and then microcontroller chip 1 can be reported to the police by control buzzer BUZ; If flame detection circuit 7 detects accident extinguishing, then microcontroller chip 1 also can be controlled buzzer BUZ warning.

As shown in Figure 1, after under-voltage situation occurring, undervoltage detection circuit 4 can send low-voltage signal to microcontroller chip 1, and microcontroller chip 1 can send high level three times continuously to warning circuit 5 after receiving signal, triode Q5 conducting, buzzer BUZ is continuous alarm three correspondingly.

In addition, described flame detection circuit 7 is the clearance-type flame detection circuit, be described ignition control circuit 6 start-up points fight detect flare up fire after, can stop to examine M second, open detection again, then stop to examine M second again if detect flame, if detect N continuous second less than flame then think flame-out, then microcontroller chip 1 can be closed gas valve by control burnt gas valve circuit 8, and control warning circuit 5 is reported to the police, wherein M is 5, and N is 5.

With reference to Fig. 1, behind the gas-cooker normal ignition, microcontroller 1 detects behind the flame can send the signal that stops to light a fire in the 2S, after this can enter clearance-type flame detected state, be that microcontroller 1 can send high level to triode Q3 base stage, Q8 sends low level to triode, control Q3 turn-offs, the Q8 conducting, the state that shakes a little less than making ignition transformer E1 enter produces low-voltage at the secondary coil of ignition transformer E1, utilizes electric capacity every the straight-through characteristic of handing over, detect required AC signal by C6 at the secondary generation flame of ignition transformer E1, the state because ignition transformer E1 this moment shakes a little less than being, level produces low pressure secondarily, so voltage-stabiliser tube ZD1 is an off-state, controllable silicon M1 can conducting yet, promptly can not carry out electronic pulse ignition this moment.Utilize flame to have the characteristic of unilateal conduction, the positive half-wave that flame detects AC signal can discharge by flame, and negative half-wave will accumulate on capacitor C 6, make that the inverting input voltage ratio in-phase input end voltage of comparator is low, comparator will be exported high level, microcontroller 1 is because after receiving the normal status signal of flame, still can continue clearance-type flame detected state; If situation that this moment, something unexpected happened; cause fray-out of flame; then the inverting input voltage of comparator can be than in-phase input end voltage height, and the comparator output low level if detected less than flame then judge flame-out in continuous 5 seconds; microcontroller chip 1 can send the instruction that enters guard mode; at this moment, microcontroller chip 1 can send a high level to the strong suction end of burnt gas valve circuit 8, makes magnetic valve CON3 close; block fuel gas supply passage, reach the purpose of safeguard protection.Simultaneously, microcontroller chip 1 can send a high level to warning circuit 5 every 1 second, and continuous 5 times, make warning circuit 5 continuous alarm 5, promptly reached the function of security warning.

More than preferable enforcement of the present utility model is specified; certainly; the present invention can also adopt form different from the embodiment described above; those of ordinary skill in the art should belong in the protection domain of the invention conversion of being done under the prerequisite of spirit of the present invention that is equal to or corresponding the change.

Claims

1. eyes gas-cooker that relies on electronic impulse to realize igniting, it is characterized in that comprising: microcontroller chip (1), microcontroller chip (1) respectively with on-off circuit (2), battery feed circuit (3), undervoltage detection circuit (4), warning circuit (5), ignition control circuit (6), flame detection circuit (7) and corresponding connection of burnt gas valve circuit (8), described flame detection circuit (7) is connected with ignition control circuit (6).

2. a kind of eyes gas-cooker that relies on electronic impulse to realize igniting according to claim 1, it is characterized in that: described ignition control circuit (6) comprises circuit for producing high voltage (61), igniting pin (62) and high pressure trigger tube (63), described circuit for producing high voltage (61) input links to each other with microcontroller chip (1), output is divided into two branch roads, article one, branch road connects igniting pin (62), another branch road connects high pressure trigger tube (63), described high pressure trigger tube (63) other end ground connection.

3. a kind of eyes gas-cooker that relies on electronic impulse to realize igniting according to claim 1, it is characterized in that: described warning circuit (5) comprises the buzzer BUZ that is connected with microcontroller chip (1), be under-voltage condition if undervoltage detection circuit (4) detects, then microcontroller chip (1) can be reported to the police by control buzzer BUZ; If flame detection circuit (7) detects accident extinguishing, then microcontroller chip (1) also can be controlled buzzer BUZ warning.

4. a kind of eyes gas-cooker that relies on electronic impulse to realize igniting according to claim 1, it is characterized in that: described flame detection circuit (7) is the batch (-type) flame detection circuit.